Sulphur Trioxide

Q.

On an industrial scale, ${\mathrm{H}}_2{\mathrm{O}}_2$ is prepared by oxidation of_________

Q.

${\mathrm{KMnO}}_4$acts as an oxidizing agent in an alkaline medium. When alkaline ${\mathrm{KMnO}}_4$is treated with $\mathrm{KI}$, Iodide ion is oxidized to

1. $\mathrm{IO}$

2. ${\mathrm{IO}}^{-}$

3. ${{\mathrm{IO}}_3}^{-}$

4. ${\mathrm{I}}_2$

Q.

Lewis-Kossel structure of $N_2$ is

1. None of these

2. 

3. 

4. 

Q. Moist $S{O}_2$ behaves as a __ agent.

Q. Purest form of Solid Sulphur trioxide exists as:

1. Dimer
2. Both a and b
3. Trimer
4. None of these

Q. In the laboratory $S{O}_3$ can be prepared by

1. Burning Hydrogen Sulphide in the air
2. Burning Sulphur in the air
3. Both a and b
4. By two stage pyrolysis Sodium hydrogen sulphate

Q.

1. True
2. False

Q. Under normal conditions, for the reaction $S{O}_3\left(g\right)+H_{2}O\left(l\right)\to H_{2}S{O}_4\left(aq\right)$ the nature of $\Delta$H is:

1. Zero
2. Can’t be determined as data is insufficient
3. Negative
4. Positive

Q.

Oleum is a combination of sulphur trioxide and ___ .